Hello and welcome. Everything you post stays here forever.
To upload images use a free hosting service like http://imgbb.com/
After the image is uploaded, look for the image "direct link" and paste that into the post where you want.
You can change your name in the settings section under "display name"
https://steemit.com/@takeitorleaveit/settings
I don't think you can search for friends but maybe find one?
Thank you very much!
I have a friend who has been writing blogs on here but I can't find his posts to upvote them. How would I go about searching? User name? Title?
Yes if you know his username then you can find his blog.
https://steemit.com/@name